Wanted to reach out. Sounds like you have been through the ringer. If you have extreme anxiety and depression, do you treat this medically and also through therapy? Important to do that as it then can make coping with other things better. Also, need to know what is possibly psychosomatic and what is true symptoms if you are battling mental health issues.
What is your next step? Colonoscopies are pretty routine these days. Try not to worry. The vast majority of the time they turn up nothing or nothing that isn't easy to solve like a polyp.
You know you have low blood sugar? Do you try to manage this as well? I'd make sure you eat on a schedule. It's important to stay hydrated as well if you battle this. The fall is the scariest and most dangerous part. Hitting heads is not a good thing.
When is your next doctor's appointment?
I am concerned too. There are a lot of issues here. Please be sure to follow up with your doctor.